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cien
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Gravitational waves are emitted when any object
that possesses mass accelerates. This can be
compared in some ways to how accelerating
charges create electromagnetic fields (e.g.
light and radio waves) that antennae detect. To
generate gravitational waves that can be detected,
the objects must be highly compact and very
massive, such as neutron stars and black holes.
Gravitational-wave detectors act as a “receiver.”
Gravitational waves travel to Earth much like ripples
travel outward across a pond. However, these
ripples in the space-time fabric carry information
about their violent origins and about the nature of
gravity – information that cannot be obtained from
other astronomical signals.
Sowhataregravitationalwaves?
It's a wobble
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TIME TRAVEL USED TO
BE THOUGHT OF AS JUST
SCIENCE FICTION, BUT
EINSTEIN'S GENERAL
THEORY OF RELATIVITY
ALLOWS FOR THE
POSSIBILITY THAT
WE COULD WARP SPACE-
TIME SO MUCH THAT
YOU COULD GO OFF IN
A ROCKET AND RETURN
BEFORE YOU SET OUT.
STEPHEN HAWKING
rToldyouso!